Couple of really nice positions

I had this really nice game against e4d4 with this luxurious 60 30 time control (60 minutes and 30 seconds extra for each move). My opponent used time really wisely compared to all my previous opponents who lived basically on inrements or close to that. I myself played pretty fast but in the end I am quite happy with my overall judgement of position. Still one critical position was misplayed by each player.

First:

Black to move

Here I get better with right move.

Second:

White to move

Here black is just gone beyond saving his game. What is  winning for white?